I can't stand her when she 'acts/gets (all) high and mighty' like that.
He's not so 'high and mighty' now that he needs our help.
It took a 'mighty' effort to get everything done on time.
(..) - You love this monkey, don't you? - What do you think? Now go to work. It's the most titanic battle of modern times! A David without a slingshot - - rises to battle the mighty Goliath, the Taylor machine, - - allegedly crooked inside and out! For my money, cut out "allegedly". (..)1939 Mr. Smith Goes to Washington
(..) when it's explained to you. For instance, building a dam on Willet Creek. What's your interest in this? Anything that benefits the state is mighty important to me. Owning a lot of its industry and newspapers. If you had the welfare of the state at heart, like I have, - (..)1939 Mr. Smith Goes to Washington